US 6,388,138 B1 · Process for producing a magnesium di[tetrakis(Faryl)borate] and products therefrom

Abstract

A solution comprising a halomagnesium tetrakis(Faryl)borate in a liquid organic medium, wherein the liquid organic medium is comprised of one or more liquid dihydrocarbyl ethers, one or more liquid hydrocarbons, one or more liquid halogenated hydrocarbons, or mixtures thereof, is contacted with water. This produces magnesium di[tetrakis(Faryl)borate] in the organic phase of a two-phase water/liquid organic medium. The magnesium di[tetrakis(Faryl)borate] can be, but need not be, isolated. A protic ammonium salt, an onium salt, or a triarylmethyl salt can be reacted with the magnesium di[tetrakis(Faryl)borate] to produce the corresponding protic ammonium, onium, or triarylmethyl tetrakis(Faryl)borate. The magnesium di[tetrakis(Faryl)borate] can instead be reacted with a metal salt to form a metal tetrakis(Faryl)borate. The produced metal tetrakis(Faryl)borate can be further reacted with a protic ammonium salt, an onium salt, or a triarylmethyl salt to yield a protic ammonium, onium, or triarylmethyl tetrakis(Faryl)borate. Certain of these tetrakis(Faryl)borates can be conveniently purified via the formation of a liquid clathrate at ambient temperatures.

Claims15

Dependent claims

A liquid clathrate that is formed from at least one liquid aromatic hydrocarbon and at least one tetrakis(aryl)borate salt, wherein each of the aryl groups is a fluorine-containing aryl group, each of which has bonded directly to an aromatic ring at least two fluorine atoms, or at least two perfluorohydrocarbyl groups, or at least one fluorine atom and at least one perfluorohydrocarbyl group, and wherein the cation is selected from

a) a protic ammonium cation, wherein the protic ammonium cation has the formula [R3NH]⊕, in which each R is independently a nonaryl hydrocarbyl group containing up to about thirty carbon atoms,
b) an onium cation, wherein the onium cation has the formula [ERn]⊕, wherein E is an element of any of Groups 15-17 of the Periodic Table, wherein each R is independently a hydrocarbyl group containing up to about thirty carbon atoms, and wherein n is equal to the valence of E plus one, and
c) a triarylmethyl cation, wherein the triarylmethyl cation has three aryl groups bound to a central carbon atom,
wherein the combination of said liquid aromatic hydrocarbon and said tetrakis(aryl)borate salt is effective to form a stable liquid clathrate.

1 more element

Dependencies are inferred from the claim text.

Process for producing a magnesium di[tetrakis(Faryl)borate] and products therefrom

Life of this patent

Process for producing a magnesium di[tetrakis(Faryl)borate] and products therefrom

Life of this patent

Abstract

Claims15